71188002 has 12 divisors (see below), whose sum is σ = 154240710. Its totient is φ = 23729328.

The previous prime is 71188001. The next prime is 71188031. The reversal of 71188002 is 20088117.

It can be written as a sum of positive squares in only one way, i.e., 67420521 + 3767481 = 8211^2 + 1941^2 .

It is not an unprimeable number, because it can be changed into a prime (71188001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1977427 + ... + 1977462.

Almost surely, 2^71188002 is an apocalyptic number.

71188002 is an abundant number, since it is smaller than the sum of its proper divisors (83052708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71188002 is a wasteful number, since it uses less digits than its factorization.

71188002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954897 (or 3954894 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 71188002 is about 8437.2982642550. The cubic root of 71188002 is about 414.4469373410.

The spelling of 71188002 in words is "seventy-one million, one hundred eighty-eight thousand, two".